java - 将字符网格添加到 jPanel

Question

我有两个类，一个是设置网格的类，另一个是制作 GUI 的类。我希望将第一类中的网格插入到第二类中的 jPanel 中。第一个网格是字符网格，填充有随机启动的数字。我无法弄清楚如何将网格插入 jpanel，因为这比预期的更复杂。我尝试了很多事情，但没有任何运气......有什么帮助吗？

//set grid class

    public void setgrid() {
            Random ran = new Random();      
            for (int i = 0; i < X; i++) {
                for (int j = 0; j < Y; j++) {
                    int num = ran.nextInt(10); 
                    if (num == 4) { 
                        grid[i][j] = 'F'; 
                    } else if (num == 9) { 
                        grid[i][j] = 'O'; 
                    } else {
                        grid[i][j] = ' '; 
                    }}}


// Panel Class
    Panel = new JPanel(new GridLayout(X, Y));
            for (int i = 0; i < X; i++) {
                for (int j = 0; j < Y; j++) {
                    world[i][j] = new JPanel();
                    world[i][j].setBackground(Color.white);
                    world[i][j].setBorder(BorderFactory
                            .createLineBorder(Color.black));
                    Panel.add(world[i][j]);

不确定要在此处添加什么才能将网格添加到面板中

Answer 1

"I am having trouble working out how to insert the grid into the jpanel as this is more complicated than expected. I have tried many things but havent had any luck..Any help?"

不确定您到底想做什么或做错了什么，但我可以建议的一件事是使用JLabel。它们以文本作为参数，在标签中显示文本。另一方面，JPanel 需要进行绘制(这意味着您需要自己实际绘制文本)。

测试一下这个程序，看看我在说什么

import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class DrawGrid {

    public DrawGrid() {
        int[][] grid = getGrid();

        JPanel panel = new JPanel(new GridLayout(10, 10));
        for (int i = 0; i < grid.length; i++) {
            for (int j = 0; j < grid[i].length; j++) {
                panel.add(new JLabel(String.valueOf(grid[i][j])));
            }
        }

        JFrame frame = new JFrame();
        frame.add(panel);
        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);


    }

    public int[][] getGrid() {
        int[][] grid = new int[10][10];
        for (int i = 0; i < grid.length; i++) {
            for (int j = 0; j < grid[i].length; j++) {
                grid[i][j] = i;
            }
        }
        return grid;

    }
    public static void main(String[] args) {
        new DrawGrid();

    }

}

<小时/>

这是我将 JLabel 添加到 JPanel 的代码

    JPanel panel = new JPanel(new GridLayout(10, 10));
    for (int i = 0; i < grid.length; i++) {
        for (int j = 0; j < grid[i].length; j++) {
            panel.add(new JLabel(String.valueOf(grid[i][j])));
        }
    }

与向 JPanel 添加边框和背景的方式相同，您也可以使用 JLabel